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doc: consolidate descriptions of SSH connectivity requirements

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Ian Barwick
2018-10-31 10:11:13 +09:00
parent fdcc3850c8
commit b74129f363
2 changed files with 37 additions and 33 deletions
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30
doc/install-requirements.sgml
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@@ -13,7 +13,7 @@
</para>
<para>
From version 4.0, repmgr is compatible with all PostgreSQL versions from 9.3, including PostgreSQL 10.
From version 4.0, repmgr is compatible with all PostgreSQL versions from 9.3.
Note that some &repmgr; functionality is not available in PostgreSQL 9.3 and PostgreSQL 9.4.
</para>
@@ -31,7 +31,7 @@
<para>
&repmgr; must be installed on each server in the replication cluster.
If installing repmgr from packages, the package version must match the PostgreSQL
version. If installing from source, repmgr must be compiled against the same
version. If installing from source, &repmgr; must be compiled against the same
major version.
</para>
@@ -42,32 +42,10 @@
</para>
<para>
Passwordless <command>ssh</command> connectivity between all servers in the replication cluster
is not required, but is necessary in the following cases:
<itemizedlist>
<listitem>
<simpara>if you need &repmgr; to copy configuration files from outside the PostgreSQL
data directory (in which case <command>rsync</command> is also required)</simpara>
</listitem>
<listitem>
<simpara>to perform <link linkend="performing-switchover">switchover operations</link></simpara>
</listitem>
<listitem>
<simpara>
when executing <command><link linkend="repmgr-cluster-matrix">repmgr cluster matrix</link></command>
and <command><link linkend="repmgr-cluster-crosscheck">repmgr cluster crosscheck</link></command>
</simpara>
</listitem>
</itemizedlist>
See also <link linkend="configuration-prerequisites">Prerequisites for configuration</link>
for information on networking requirements.
</para>
<tip>
<simpara>
Consider setting <varname>ConnectTimeout</varname> to a low value in your SSH configuration.
This will make it faster to detect any SSH connection errors.
</simpara>
</tip>
<tip>
<simpara>
We recommend using a session multiplexer utility such as <command>screen</command> or